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<html>
	<head>
		<meta charset="UTF-8">
		<title></title>
		<style type="text/css">
			.y1{
				width: 200px;
				height: 100px;
				background-color: black;
				border-radius: 200px 200px 0 0 ;
				position: relative;
			}
			.y2{
				position: relative;
				width: 200px;
				height: 100px;
				background-color: yellow;
				border-radius: 0 0 200px 200px;
			}
			.sub1{
				width: 100px;
				height: 100px;
				border-radius: 50%;
				background-color: black;
				position: absolute;
				top: 50px;
				z-index: 10;
			}
			.sub2{
				width: 100px;
				height: 100px;
				border-radius: 50%;
				background-color: yellow;
				position: absolute;
				right: 0px;
				top: -50px;
			}
			.x{
				width: 30px;
				height: 30px;
				border-radius: 50%;
				background-color: yellow;
				position: relative;
				left: 35px;
				top: 35px;
			
			}
			.x2{
				width: 30px;
				height: 30px;
				border-radius: 50%;
				background-color: black;
				position: relative;
				left: 35px;
				top: 35px;
				
				
				
			}
			.tiji{
				widows: 200px;
				height: 200px;
				box-shadow: 0 0 5px burlywood;
				border-radius: 50%;
				position: absolute;
				left:0;
				top:0;
			}
			body{
				margin: 0;
				padding: 0;
			}
			#nav ul {
				zoom: 1;
				overflow: hidden;
				list-style: none;
				margin: 0;
				padding: 0;
				background: #eeeeee;
			}
			
			#nav li {
				float: left;
				width: 135px;
				height: 40px;
				line-height: 40px;
				text-align: center;
				text-decoration: none;
			}
			
			#nav a {
				color: #333;
				text-decoration: none;
			}
			
			#nav a .en {
				display: none;
			}
			
			#nav a:hover {
				display: block;
				background: #dddddd;
				font-weight: 700;
				color: #222;
			}
			
			#nav a:hover .en {
				display: inline;
			}
			
			#nav a:hover .cn {
				display: none;
			}
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			</div>
		<div class="tiji">
			<div class="y1">
				<div class="sub1">
				 <div class="x">
				 	
				 </div>
				</div>
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			<div class="y2">
				<div class="sub2">
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